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Re: Blocking ssl vpn connections
From: "Aaron Rohyans" <aaronr () imcu com>
Date: Fri, 24 Mar 2006 15:25:53 -0500

Block port 443 (HTTPS).  Be careful to be as specific as possible in your
access-control-lists so as not to deny access to https enabled websites that
are legit though....

Later,
Aaron

----- Original Message ----- From: "Andrew Stewart" <astewart () Gestampna com>
To: <security-basics () securityfocus com>
Sent: Thursday, March 23, 2006 4:34 PM
Subject: Blocking ssl vpn connections


How would one go about blocking an SSL VPN (e.g. openVPN) on a firewall
(or even detecting it via an IDS)?  I was wondering what a
network/security administrator should do to prevent an employee from
connecting to a SSL VPN from internal to the administrator's network to
some unknown SSL VPN server.  I could see this being used for numerous
things that are not in agreement with most companies acceptable use
policies.

---------------------------
Andrew Stewart
Gestamp Alabama, Inc.
IT Support Tech

astewart () gestampna com

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